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Biblis Tholus is an extinct Martian volcano located at ,〔 one of two volcanoes near the center of the Tharsis volcanism. Along with Ulysses Tholus, it is almost midway between Olympus Mons and the Tharsis Montes. It is approximately long and wide, rising about from its surroundings. In the middle of the volcano is a caldera, named Biblis Patera, believed to have formed as the result of collapse of the magma chamber during eruptions of the volcano. The caldera is in diameter and four kilometers (2.5 miles) in depth. Image:Biblis Patera - topography map.png|Topography and location in Tharsis using MOLA data set. Image:Biblis Patera from Mars Odyssey.JPG|Close up of Biblis Patera taken with Mars Odyssey. Rim of crater shows multiple episodes of collapse. Image:Ulysses Patera.JPG|Nearby Ulysses Tholus, showing its location in relation to other volcanoes (photo by THEMIS). Image:Biblis Patera Pedestal Crater.JPG|Biblis Patera pedestal crater, as seen by HiRISE. Image:Pedestal crater3.jpg|Pedestal craters form when the ejecta from impacts protect the underlying material from erosion. As a result of this process, craters appear perched above their surroundings. ==See also== * Geography of Mars * List of mountains on Mars by height * Pedestal crater 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Biblis Tholus」の詳細全文を読む スポンサード リンク
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